Answer:
The answer is 36
Step-by-step explanation:
Let the number be <em>x</em>
x/40 is her mark
she got 90% mark correct
x/40 x 100 = 90
by cancellation we get 9 x 4 = 36
HOPE THIS HELPS
The original price of a sweater is $36. The sale price is 85% of the original price. What is the sale price of the sweater
1 answer:
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The slope of this graph is - 4
Step-by-step explanation:
The slope of a line is , where
and
are two points on the line
- The slope of a horizontal line is zero
- The slope of a vertical line is undefined
∵ The graph is a line
∵ The line passes through points (1 , -2) and (0 , 2)
∴ = 1 and
= 0
∴ = -2 and
= 2
- Substitute these values in the rule below
∵
∴
∴ m = - 4
The slope of this graph is - 4
Learn more:
You can learn more about the slope of a line in brainly.com/question/4152194
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